package com.example.demo.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.example.demo.domain.LoginUser;
import com.example.demo.domain.User;
import com.example.demo.mapper.MenuMapper;
import com.example.demo.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;

/**
 * @author twj
 * @description TODO
 * @time 2023/8/12^14:15:35
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private MenuMapper menuMapper;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //查询用户信息
        LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(User::getUserName,username);
        User user = userMapper.selectOne(queryWrapper);
        //如果没有查询到用户就抛出异常
        if(Objects.isNull(user)){
            throw new RuntimeException("用户名或密码错误");
        }
        //TODO 查询对应的权限信息
        //List<String> permissions = new ArrayList<>(Arrays.asList("test","admin"));
        List<String> permissions = menuMapper.selectPermsByUserId(2L);
        //把数据封装成UserDetails返回
        return new LoginUser(user,permissions);
    }
}
